This is a discussion on Terrible call with 99 within the online poker forums, in the Tournament Hand Analysis section; UTG +2 shoves 12bb
Cutoff shoves 9bb
Button (hero) shoves 15bb with pocket 9s
UTG+2 has QQ
Cutoff has AKo
Queens hold and we bust the next hand
When cutoff shoved
If you plug this in to a program like ICMizer, it might tell you, you need something slightly stronger to call here, because you are against two players, and the second one should have a fairly strong range. But it has to be pretty close, so its not like, this was a major blunder. Also if these guys were getting it in light, calling with 99 might be just fine. The fact, you were against QQ and AK, does not make it a bad call, since even a wide range will also contain the best hands.
This is not a terrible call but I dont think its a good call. The reason is you are going against two players. The likelihood that one has a bigger pair or that you are going against three over-cards or more between the two hands is fairly large. Obviously depends on ICM and where you are compared to the bubble but this is a gamble to me, one that you would not need to make at 15 BB with a little time to still play push/fold and possibly get a better spot. That advice is coming from a nit so take it for what its worth.